In Heroes of Hellas 3: Athens, bonuses are accrued by eliminating chains of identical jewels and coins. Your points can then be used to buy houses and the other key infrastructure necessary to rebuild the city. Success depends not only upon your ability to unlock all of the hidden treasures, but also upon gaining the trust of the Heroes. Keep the gods happy and you shall succeed; incur their wrath and you shall encounter difficulties. The importance of pleasing the gods cannot be overestimated!